ISO INTERNATIONAL STANDARD 21927-7 Firstedition 2017-04 Smoke and heat control systems Part 7: Smoke ducts sections Systemes pour le controle des fumées et de la chaleur- Partie 7: Sections des conduits de désenfumage Reference number ISO 21927-7:2017(E) International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C15956617 vided by IHS under lic Not for Resale, 2017/8/21 02:01:27 itted without license from IHS IS0 21927-7:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinair PrganizationforStandardization see-ZHEJIANG INSTOFSTANDARDIZARoISQ07- All rights reserved Not for Resale, 2017/8/21 02:01:27 etworking permitted without license from IHS IS0 21927-7:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Normative references ..1 3 Terms and definitions ..1 4 Smoke control duct section requirements .3 4.1 General .3 4.1.1 Fire resistancemulti-compartment smoke control duct section .3 4.1.2 Fire resistance single compartment smoke control duct section 4 4.2 Construction and components: Characteristics.. .4 4.2.1 Construction and operation 4 4.2.2 Structural supports used for smoke control duct sections .4 4.2.3 Duct sealant materials used in or between smoke control duct sections .4 4.2.4 Penetration seals between fire compartments ..4 4.2.5 Other components .5 4.3 Fire resistance performance criteria: Multi-compartment fire resisting smoke controlductsections .5 4.3.1 Integrity,insulation, leakage .5 4.3.2 Fire resistance classification and designation. 6 4.4 Fire resistance performance criteria: Single compartment smoke control duct sections.... 6 4.4.1 Integrity, leakage. 6 4.4.2 Fire resistance classification and designation .6 5 Test methods. 7 5.1 Ambient leakage tests .7 5.2 Fire resistance tests .7 5.2.1 General. .7 5.2.2 Smoke control duct section: integrity and insulation .7 5.2.3 Leakage rated smoke control duct section. .8 6 Marking and documentation ..8 7 Product, installation and maintenance information (documentation) ..8 7.1 Product specification 7.2 Installation information. .8 7.3 Maintenanceinformation .9 Annex A (informative) Example of inspection and maintenance procedure ..10 Bibliography .11 iii ZHEJIANG INST OF STANDARDIZATION C1 5956617 ithout license from IHS